ADVANTEST R9211E Digital Spectrum Analyzer User Manual

ADVANTEST R9211E Digital Spectrum Analyzer User Manual

High-Performance FFT Analyzer Featuring 90 dB Wid

The R9211E is a high-performance digital spectrum analyzer weighing only 12 kg. It incorporates the latest ADVANTEST technology including g a proprietary LSI, low-power consumption electronic circuit, and high-density packaging.

This economical FFT analyzer is ideal for acoustic, vibration, and noise signal analyses. The measuring frequency range is from 10 mHz to 100 kHz and the 16-bit high resolution realizes a 90 dB (typical value) wide dynamic range. The R9211E analyzes weaker signals than conventional models can. The inpu t sensitivity is — 140 dBV (typical value i n 2 kHz range) and the variable function enables the frequency resolution to be chaged from 25 lines to 3200 lines for high-speed spectrum analysis or approximate spectrum separation measurement. In addition to these excellent characteristics, the epoch-making FFT analyzer has a unique fourdomain (four measurement area modes) method structured for a wid e range of user applications. Y ou can select one of the four domain modes according to the type of analysis that you want to perform, whether waveform measurement, spectrum analysis, time- frequency analysis, or frequency response function measurement. These domain modes make measurement muc h quicker and easier.

A wid e variety of options such as a large memory capacity, built-i n floppy disk, and analysis by 16-bit direct digital input meet your applications.

• 90 dB (typical value) wide dynamic range featuring 2 channels and 16-bit resolution
• Frequency range: 10 mHz to 100 kHz (1-2-5 step)
• Maximum input sensitivity: -14 0 dBV (2 kHz, typical value)
• Four-domain system exclusively available for each type of analysis
• Frequency analysis resolution: 25 to 3200 lines
• 12 kg portable model with big 8-inch CRT
• Optimum input range setting in 1 dBV steps from +30 to -6 0 dBV
•  3.5-inch floppy disk drive mounted (optional)
• Built-in thermal printer (optional)
• I 16-bit direct digital input (optional)
• Up to 1 M-word memory extension (optional)
• Built-in power supply for accelerometer with internal amplifier
• Differential input

Dynamic Range And-140 dBV High-Sensitivity inpu

Wide Measuring Frequency Range from 10 mHz to 100 kHz

The combination of high-precision analog and digital niters enable an aliasing filter to be set for any frequency range from 10 mHz to 100 kHz The frequency resolution can be set from 25 lines to 3200 lines i n each frequency range from 10 mHz to 100 kHz, according to the purpose of analysis, The scale function enables you to display only the spectrum of the band that you are interested in.

16-bit Resolution, 90 dB (Typ.) Wide Dynamic Range

ADVANTEST’s high-level analog/digital signal processing technology realized 90 dB (typical value) wide dynamic spectrum measurement. The input sensitivity range can be varied in 1 dB steps so that the internal A/D converter can be fully utilized. makes the analyzer a powerful tool to measure the mechanical characteristics of an optical electromagnetic disk, to analyze an audio signal distortion or a transient signal, or to measure a transfer function by using the impulse hammer.

-140 dBV (Typ.) High-sensitivity Measurement

The R9211E realizes -14 0 dBV (0.1 /JLV, typical value in 2 kHz range) together wit h differential input. This makes it ideal for noise analysis on a semiconductor device.

12 kg Portable Model with Big 8-inch CRT

The R9211E is a high-performance portable analyzer. Weighing just 12 kg, it is easy to carry. The 8-inch amber CRT displays analysis data very clearly. To operate the R9211E, just select a measuring function from the software menu. The analyzer is ideal for maintenance or use on a vehicle.

• 90 dB (typ.) wide dynamic range
  

• -14 0 dBV (typ.) high-sensitivity measurement(Example of low-noise level measurement)
  

Four-domain System for Easy Operation

‘ Easy-to-use Four-domain FFT Analyzer

Digital spectrum analyzers usually have many functions for a wide range of measurement purpose. They are hard to operate because everything must be included, even if only a few functions are needed at that time. The R9211E makes it much simpler. It has four measurement area modes. Just select the one you need and set the software keys for that mode alone. You don’t have to worry about other analysis functions and setting conditions,

Waveform Measurement Mode

In this mode, the analyzer can analyze a signal in the time domain faster than conventioanl models can. The anti-aliasing filter can be turned on or off, so you can use the analyzer as a 16-bit/256 kHz sampling digital osciloscope. This means that the analyzer is suitable for the analysis of transient sound phenomena on an acoustic instrument in the time domain, for a start characteristic test on an engine or motor, for POWER ON RESET signal waveform analysis, and for a differential linearity test on a D/A converter.

Spectrum Measurement Mode

The analyzer has a 90 dB (typical value) wide dynamic measuring range and realizes -14 0 dBV (typical value in 2 kHz range). This is useful for approximate analysis of a spectrum

Time-frequency Analysis Mode

In this mode, the analyzer can evaluate the sounds of a musical instrument or the reverberant characteristic of a concert hall by analyzing the time fluctuation of a specific spectrum (level monitor function).

This mode can be used to analyze the spectrum fluctuation time characteristic of a VTR’s wow and flutter component or the jitter phase fluctuation time characteristic (phase monitor function).

Frequency Response Function Measurement Mode

In the frequncy response function measurement mode, the frequency resolution can be varied from 25 lines to 800 lines. In addition, a sensor with a built- in amplifier or an impulse hammer can be directly connected to the two channels of power supply built into the R9211E to provide an acceleration sensor to measure the transfer function of a structure.

• Example of three-screen simultaneous display
  

• Example of 1/3-octave analysis
  

Abundant Handy Analysis And Display Functions

Standard Memory 64K-byte/2-channel Memory Extension Possible

The R9211E has two channels of 64K-byte memory. If necessary, an I/O + memory or C-MOS memory can optionally be added up to 1M words. The C-MOS memory is particularly useful for analysis in vehicle or other test environments where a floppy disk memory cannot be used.

The R9211E can also store measurement data and panel settings in the internal lM-byte 3.5-inch micro floppy disk, the MS-DOS format is used so that the data can be transferred to personal computer.

Direct 16-bit Digital Input (“I/O + Memory” Optional)

The I/O 4- memory is a useful option to evaluate digital audio A/D converters and DSPs for DAT and CD. To analyze a spectrum or distortion, digital signals can be inserted immediately after the R9211E A/D converter in the 16 bits + EOC data format (complement of 2).

Abundant Marker Functions and Various Display Functions

The R9211E has many marker analysis functions which can analyze and evaluate a peak marker, next peak marker, harmonic marker, band marker, overall power, attenuation power, partial power mean power, distribution, and XdB marker. These functions greatly reduce the measurement time. The CRT can display up to 4 screens at the same time, overlap data in the same area or analysis range, or display up to 50 lines in a three-dimensional format. Wit h the bar display function, the overall power, partial power, mean power or power distribution can be checked easily

• Example of 4-screen simultaneous display
  

• Example of marker analysis function (XdB marker)
  
  

Compact, Lightweight FFT Analyzer, Easy To Carry For Field Measurement

Specifications

No. of input channels: 2
Input format: Differential input, single-ended input
Input impedance: Approx. 1 Mfl/100 pF (single-ended)
Input coupling: AC, DC, and GND
Common-mode rejection ratio (CMR): 50 dB or more (with DC coupling, 50/60 Hz)
Maximum differential input voltage : ±20 0 V
Maximum common-mode signal voltage : ±20 0 V
Input range : +30 dBV to -6 0 dBV (variable in 1-dB steps) Voltage display 44.7 V to 1.41 mV rms display 31.6 V to 1 mV
Auto range: Optimum setting i n above range by signal input (in 5-dB steps)

Maximum common-mode signal voltage: ± 1 4 V (-6 0 dBV range to – 6 dBV range) ±14 0 V (- 5 dBV range to +14 dBV range) ±20 0 V ( + 15 dBV range to +30 dBV range)
Maximum input sensitivity: -12 5 dBV (approx. 0.56/u. Vrms) (typical value: -14 0 dBV i n 2 kHz range)
Dynamic range: Range of values starting from full scale i n spectrum mode; measured under the conditions of 32 times averaging, rectangular wave weighting, filter on, and 400 spectrum lines by inputting a sine wave of frequency range 0 to 90% and amplitude level – 3 dB. (at23°C±5°C) 85 dB ( + 30 dBV ~ -4 0 dBV) (Typ. 90 dB) 75 dB(-4 1 dBV 50 dBV) 65 dB(-51dB V 60 dBV)

Residual noise: Range of values starting from full scale i n spectrum mode; measured under the conditions of 32 times averaging, rectangular wave weighting, filter on, and 400 spectrum lines by eliminating i/f noises; frequency range 0 to 90% (at 23°C ±5°C) – 8 5 dB( + 30 dBV ~ -4 0 dBV) – 7 5 dB(-4 1 dBV 45 dBV) – 6 0 dB(-4 6 dBV 60 dBV)

Amplitud e linearity : ±0. 2 dB or less (from full scale to -4 0 dB, 23°C ±5°C)
Frequency levelness: ±0. 3 dB or less (at 23°C ±5°C) ( —3 dB point of AC coupling i n frequency range from 0 to 90% is approx. 0.2 Hz)
Amplitud e accuracy : Amplitud e linearity + frequency levelness (at 23°C ±5°C)
Channel-to-channel amplitude difference: ±0. 3 dB or less (at 23°C ±5°C) in the same sensitivity range and frequency range from 0 to 90%
Channel-to-channel phase difference: ±3. 0 deg or less (at 23°C ±5°C) i n the same sensitivity range and frequency range from 0 to 90%
Accelerometer power source: AC input only 4 m A current source Channel A/B + side Maximum operating voltage + 18 V Open circuit voltage +24 V or less Overload display: LED
Test signal: In frequency range from 100 kHz to 2 kHz Amplitude level Approx. —4 dBV Frequency 8% rectangular wave i n the range
A/D converter resolution: 16bits
Frequency range : 10 mHz to 100 kHz, 22 ranges i n 1, 2, and 5 steps

Frequency accuracy: ±5 0 ppm ± measuring resolution i n the frequency range (at 23°C ± 5°C)
Input filter: Anti-aliasing filter (roll-off characteristic: —148 dB/ octave automatically set for each frequency range
External sampling input: Sampling from BNC connector of the rear panel by TTL-level external pulse (anti-aliasing filter on/off possible)
External sampling output: Sampling signal output to BNC connector of the rear panel

Triggering

Triggering
Trigger modes: Free-run, manual, external and internal trigger, automatically repeating trigger Trigger sources: Channel A signal, Channel B signal and external signal triggering Trigger levels:
Internal trigger Set by numeric keys wit h 1/256 resolution of the amplitude range External trigger TTL signal rising or falling edge selected (BNC connector of rear panel) Trigger slope: + , —, ± (input signal trigger) Trigger position:
Single-channel mode Setting range of —128K to 1M wit h a resolution of 1 sampled data item Dual-channel mode Setting range of —64K to +1 M wit h a resolution of 1 sampled data item

Averaging

Frequency-domain averaging modes : Additio n (SUM),B subtraction (SUB), exponential function moving mean (EXP), and maximum detected value (PEAK)
Time-domain averaging mode: Additio n (SUM)
Delay-domain averaging mode: Additio n (SUM)
Amplitude-domain averaging mode: Additio n (SUM)
No. of averages : 1 to 32767 Overlapping: 0%, 50%, 75%, max.
Averaging control: Start, stop, +1 , continue (Erased automatically at start)

Measurement modes

• Waveform measurement mode
• Spectrum measurement mode
• Time-frequency analysis mode
• Frequency response function measurement mode

Waveform measurement mode

Measured items:
Time-domain instantaneous data Time-domain average data Auto-correlation function Cross-correlation function Probability density function
No. of analyzed data : 64 to 8192 points (1 channel) 64 to 4096 points (2 channels) Averaging:
Time-domain averaging Delay-domain averaging Amplitude-domain averaging
Conversion function: In engineering unit Marke r analysis functions: Peak, rise time, fall time, pulse width , and effective value
Arithmeti c functions : Differentiation, integration, smoothing, trend removal, addition, subtraction, multiplication, division, and pre-envelope

Display functions: Time-amplitude, amplitude-probability density, and orbit

Spectrum Measurement Mode

Measured items:
Complex spectrum Power spectrum Mutua l spectrum

Averaging: Frequency -domain averaging
No. of analysis data : 64 to 8192 points (single-channel) 64 to 4096 points (dual-channel)

Frequency resolution:
Linear 25 to 3200 lines (single-channel) 25 to 1600 lines (dual-channel) Logarithm 3 decades max., 80 lines/decade Other 1/3 octave, 1/1 octave
Weighting: Rectangular, hanning, minimum, flat-pass, force/ response * Window function fixed to minimum for the logarithm frequency resolution or octave resolution
Conversion function: A/B/C characteristic correction in engineering unit
Marker analysis functions: Peak, next peak, band, harmonic, sideband, overall power, partial power, average power, and variance
Arithmetic functions: Addition, subtraction, multiplication, division, pre-envelope, liftered, spectrum, power cepstrum, jw, 1/jw, and smoothing
Display functions: Frequency-amplitude, frequency-phase, frequency-real part, frequency-virtual part, Nyquist diagram

Time-frequency analysis mode

Basic measured items: Time waveform, complex spectrum, power spectrum
Time-frequency analysis functions: Level monitor, phase monitor, frequency monitor Averaging: Frequency-domain averaging
Transient waveform memory : 128K words (single-channel) 64K words (dual- channel)
No. of analysis data: 64 to 2048 points
Frequency resolution :
Linear: 25 to 800 lines
Logarithm: 3 decades max., 80 lines/decade
Other : 1/3 octave, 1/1 octave
Weighting: Rectangular, hanning, minimum, flat-pass, force/ response * Window function fixed to minimum for the logarithm frequency resolution or octave resolution
Conversion function: In engineering unit
Marker analysis functions: Peak, next peak, band, harmonic, sideband, overall power, attenuation power, partial power, average power, and variance
Arithmetic: Addition, subtraction, multiplication, division, preevelope, liftered, spectrum, power cepstrum, jw, 1/jw, smoothing, and level monitor accumulation
Display functions: Frequency-real part, frequency-virtual part, frequency-amplitude, frequency-phases, Nyquist diagram, time-level, time- phase, and time-frequency

Frequency response function measurement mode

Measured items:
Frequency response function Group delay
Association degree function Power spectrum Mutual spectrum Impulse response function
Averaging: Frequency-domain averaging No. of analysis data: 64 to 2048 points Frequency resolution: Linear 25 to 800 lines
Weighting: Rectangular, hanning, minimum, flat-pass, force/ response
Conversion function: In engineering unit
Marker analysis functions : Peak, next peak, band, harmonic, sideband, overall power, partial power, average power, and variance, positive peak, negative peak, XdB, shape factor, and ripple
Arithmetic functions: Addition, subtraction, multiplication, division, unwrapped phase, jw, 1/jw, inverse number, impulse response, equalizing, phase correction, coherent output power (COP)
Display functions: Frequency-amplitude, frequency-phase, frequency-real part, frequency-virtual part, frequencygroup delay, frequency-association degree function, Nyquist diagram, cole-cole diagram, and Nichols diagram

Display Specifications and Functions

Display function: 8-inch raster scan CRT
Measurement condition selection : Interactive menu selection
Engineering unit: Marker reading and X-axis scaling display in arbitrary physical quantity
Display modes : One-screen, two-screen, three-screen, and fourscreen displays
Overlaid display mode : Two sets of data from the same domain and having the same analysis ranges may be displayed overlaid on the same display screen
Grid display : Switchable on/off 3-dimensional display: Up to 50 lines of selected data may be used to create a 3-dimensional display
Bar display : Overall power, partial power, average power, or power variance is displayed on the right side of the C RT
Label: Up to 40 arbitrary alphanumeric and special characters can be displayed or shifted vertically List modes:

Single mode Digital listing of any 20 spectrum frequencies and corresponding levels, selected from the displayed spectrum using a cursor

Harmonic mode With the fundamental frequency selected by using the cursor, digital display of this and harmoni levels is made, along with THD (total harmonic distortion) and THP (total harmonic power)
X axis : Linear, logarithm
Y axis: Arbitrary setting by numeric input
Auto-scaling : Display data is automatically scaled for display
Plotter output : Direct output to R9833 or other plotter with HP-GL
Calendar clock function : Date (year/month/day) and time (hour/minute) display

Specifications (continued)

Storage Functions

Transient waveform data memory : This is used for the timefrequency analysis mode
Standard memory 128K words I/O + memory (option 11) 1M words CMOS memory (option 10) 1M words (battery backup)
Panel memory : This contains the panel conditions (Battery backup, storage for about one month)

I/O functions

Video signal output: Separate, TTL level
GPIB interface: Standard
Plotter output : Through GPIB
External sampling clock input : BNC type, TTL level
External trigger input : BNC type, TTL level
Sampling clock output : BNC type, TTL level
Trigger output signal : BNC type, TTL level

General Specifications

Operating temperature range: Ambient temperature 0°C to +40°C Relative humidity 80% or less ( + 5°C to +35°C when the internal floppy disk or internal printer is used)
Storage temperature: Ambient temperature — 20°C to +60°C
Power supply : Specify a type when ordering

Option No| Standard| Option 32 || Option 42| Option 44
---|---|---|---|---
voltage| 90 TO 110 vac| 103 TO 132 vac| 198 TO242vac| 207 TO250vac

48 to 66Hz
Power consumption : 140 V A or less (standard)
Exterior dimensions: Approx. 330 (W) X 177 (H) X 450 (D) mm
Weight : 12 kg or less (mainframe) Accessories

Options

Option 06 Internal floppy disk Type 3.5-inch micro floppy disk Media 2DD/2HD Capacity 640K/720K/1M bytes (when formatted) Format MS-DOS conversion possible Data file Measured data and panel conditions Data file operations Listing, generation, erasure, and copy
Option 07 Built-i n printer Hard copy output from CRT display Print method Heat-sensitive line dot Dot configuration 640 dots/line Specified record form A09075 Form widt h 114 mm

Option 11 I/O + memory
This optional board has the following functions Extension memory 1M words (2M bytes) Digital input For digital signal input not through the internal A/D converter (Maximum sampling rate 256 kHz) Data format 16 bits + EOC signal (complement of 2)

Digital output For data output from internal A/D converter Data format 16 bits

• channel identification signal + strobe signal (complement of 2) Option 10 CMOS memory
  lM-wor d (2M-byte) battery backup memory * Only one of Options 6,11 , and 10 can be selected.

FFT Accessories

Impulse hammer
With the impulse hammer, the mechanical impedance or resonance characteristic of a structure can easily be measured. The hammer is very easy to use. Simply attach an accelerometer to the item and hit the item with special hammer. The transfer function and mechanical impedance can be measured on a realtime basis by inputting the signals from the hammer and accelerometer to the R9211 model. Several different hammers are available; choose the best one for your purpose. Contact your nearest sales office or the sales promotion department of ADVANTEST.

Impulse Hammer (Low output impedance, voltage output model) (Made by DYTRAN)

| | |
---|---|---|---
Model| 5800SL super-light model| 5801A-series high-range model| 5850A three- range model
Head weight (g)| 2.0| 150| 150
Force range (16-F)| 50| 500, 1000, 5000| 50, 500, 5000
Nominal sensitivity (mV/Ib)| 100| 10, 5. 1| 100.10, 1
Sensor resonance frequency (kHz)| 300| 50| 50                               .
Head diameter (mm)| 11| 19| 19
Impact tip diameter (mm)| 2.5| 6.4| 6.4
Hammer length (cm)| 11.4| 22| 22
Head weight (g)| 5.5| 210| 210
(including extender)| | (270)| (270)
Sensor rigidity(1bF/Ain)| 1.5| 8.0| 8.0
Output connector| #10-32| #10.32| #10-32
Material: Sensor| 17-4 PHs.s| 17-4 PHs.s| 17-4 PHs.s
Head| Derlyn| 303s.s| 303s.s
Handle| Polyurethane/Aluminum| Fiberglass| Fiberglass

Accelerometer

During the development of a structure or an equipment unit, vibration and shock measurements are very important means of testing or monitoring their operations. Using the accelerometer to sense vibrations gives high sensitivity and excellent frequency and amplitude characteristics. The accelerometer is compact, lightweight and has a long service life. It is easy to use for many purposes. There is also a wide selection of vibration detection elements, just a few are shown here. For further information about them and their connection to ADVANTEST’s digital spectrum analyzer, contact your nearest sales office or the sales promotion department of ADVANTEST.

Acceleration Sensors with Internal Amplifiers (Made by ENDEVCO)

| ****| | | | | |
---|---|---|---|---|---|---|---
Model| 2250/002250M410| 7250A/7250AM1| 725410, -100| 7259A-1, -10| 7251-10, -100| 225141, -10| 2256-10, -100
Sensitivity (mV/g)| 10| 2/10| 10/100| 1/10| 10/100| 1/10| 10/100
Response frequency (Hz)| 4-15,000| 4-20,000| 1-10,000| 5-30,000 ±1dB| 1-10,000| 2-15,000/5-8,000| 1-5,000
Resonance frequency (Hz)| 80,000| 85,000| 45,000| 150,000/100,000| 45,000| 90,000/40,000| 20,000
Anti-G (G)| 2,000| 5,000| 5,000| 10,000| 5,000| 20,000/5,000| 2,000
Operating temperature range (C)| -55-+125| -55-+125| -55-+125| -55-+125| -55–+125| -55–+125| -55–+125
Casing| Grounded| Grounded| Grounded| Grounded| Grounded| Grounded| Grounded
Casing and mounting place| Insulated| Insulated| Grounded| Grounded| ” Insulated| Insulated| Insulated
Size (mm)| 5.8×3.8| 9.5×5.8| 15.9 x 16.0| 9.5 x 12.0| ,        15.3×10.7| 10.2×11.9| 11.1×10.1
Weight (g)| Stuck| 1.8| 10-32 Studded| 10.32 Studded| 6-32 Screwed| 2-56 Screwed a stuck| 5
Mounting| 2-56 Screwed| 10-32 Studded| 10-32 Studded| 6.32 Screwed| 2-56 Screwed a stuck| Stuck| Stuck
Seal| Epoxy| Welded| Welded| Epoxy| Welded| Welded| Epoxy
Accessory cable| 3006-120| 3091E-120| 3090C-120| 3091E-120| 30900120| 3007-120| 3060A-120

Introduction ofR9211 Series

200. 0 i Bflrate (Ml) Italy
     Via Leonardo da Vinci, 21/23
     Tel (02)«l 34.034/5-21.35.418/9 r.a.
     Telex 322834 – Telefax (02) 2133970

ADVANTEST CORPORATION Shinjuku-NS Building, 4-1. Nishi-Shinjuku 2-chome, Shinjuku-ku. Tokyo 163, Japan Phone:(03)342-7500 Facsimile:(03)342-7410 Telex:232-4914 ADVAN J

AdvantestAmerica,Inc. 300Knightsbridge Parkway, Lincolnshire, IL60069, U.S.A. Phone:(312)634-2552 Facsimile:(312)634-2872
Advantest UK Limited CI Tower, St. Georges Square, High Street, New Maiden, Surrey, KT3 4HH, U.K. Phone:(01)336-1606 Facsimile:(01)336-1657

Data subject to change without notice. C Copyright 1988 ADVANTEST CORPORATION

Printed in Japan. Bulletin No. R9211E-531E Dec. ’88 I

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